We disable these tests because OpenCDK's `cdk_stream_tmp_from_mem ()'
stupidly uses `tempfile ()', which does not honor $TMPDIR, leading to
build failures in chroots.  See also:

  http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/2693


--- gnutls-2.3.4/tests/openpgp/Makefile.in	2008-03-19 13:46:02.000000000 +0100
+++ gnutls-2.3.4/tests/openpgp/Makefile.in	2008-04-08 23:21:34.000000000 +0200
@@ -52,7 +52,7 @@ POST_UNINSTALL = :
 build_triplet = @build@
 host_triplet = @host@
 target_triplet = @target@
-@ENABLE_OPENPGP_TRUE@TESTS = keyring$(EXEEXT)
+@ENABLE_OPENPGP_TRUE@TESTS =
 @ENABLE_OPENPGP_TRUE@check_PROGRAMS = keyring$(EXEEXT)
 subdir = tests/openpgp
 DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in

--- gnutls-2.3.4/guile/tests/Makefile.in	2008-03-19 13:46:00.000000000 +0100
+++ gnutls-2.3.4/guile/tests/Makefile.in	2008-04-08 23:30:15.000000000 +0200
@@ -524,7 +524,6 @@ top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
 TESTS = anonymous-auth.scm session-record-port.scm		\
         pkcs-import-export.scm					\
-	openpgp-keys.scm openpgp-keyring.scm openpgp-auth.scm	\
         srp-base64.scm errors.scm				\
 	x509-certificates.scm x509-auth.scm